Fastening device



The present patent application is related to U.S. Ser. No. 29/530,230 filed on Jun. 15, 2015, which is incorporated herein in its entirety by reference.

FIG. 1 is a top plan view embodying the inventive design;

FIG. 2 is a rear view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is an environmental perspective view thereof.

The broken lines are directed to environment and form no part of the claimed design. 

CLAIM The ornamental design for a fastening device, as shown and described. 